Interaction of Na with sexithiophene thin films

被引：19

作者：

Murr, J ^{[1
]}

Ziegler, C ^{[1
]}

机构：

[1] Univ Tubingen, Inst Phys & Theoret Chem, D-7400 Tubingen, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.57.7299

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of Na on the electronic structure and electrical properties of alpha-sexithiophene (alpha 6T) are investigated with electron spectroscopic methods under UHV conditions. A shift of the valence-band edge away from the Fermi level, and the evolution of states in the gap, can be determined. In a classical band-structure picture this could be explained as an n-type doping process. However, all results point at a high localization of the negative charge at the sulfur atom which is reflected in a very low specific conductivity.

引用

页码：7299 / 7304

页数：6

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